Figure 2
A 57-year-old female patient with thecoma. (a) Axial T1WI revealed a solid mass with a mostly iso–hypointense signal in the left adnexal region (arrow). (b) On sagittal T2WI, the solid tumor, 116 mm in maximum diameter, showed a heterogeneous signal with patchy high signal located eccentrically and an intermediate signal located peripherally. (c) On fat-suppressed T2WI, the signal of the mass was similar to that in (b). (d) On contrast-enhanced fat-suppressed T1WI, the lesion showed mild enhancement, less than that of the myometrium. (e) On DWI-MRI (b = 700 s/mm2), the lesion appeared as a homogeneous hyperintense signal. (f) ADC map shows the hypointense signal with a marked peripheral hypointense signal. The ADC value at the corresponding site is 1.75 × 10–3 mm2/s.